福建靜電除塵器廠家

靜電除塵器的(de)工作原理是利用(yong)高壓(ya)電場使煙氣發生(sheng)電離，氣流中的(de)粉塵荷電在電場作用(yong)下與氣流分離。負極(ji)由不同(tong)斷面形狀的(de)金屬導線(xian)制(zhi)成，叫放電電極(ji)。

正極由不同幾何形狀的金屬板制成，叫集塵電極。靜電除塵器廠家的(de)性(xing)能(neng)受粉(fen)塵性(xing)質、設(she)備構造(zao)和煙氣流(liu)速(su)等三個因素的(de)影響。粉(fen)塵的(de)比(bi)電阻是評價導電性(xing)的(de)指標(biao)，它(ta)對除(chu)塵效率(lv)有直接的(de)影響。比(bi)電阻過低(di)，塵粒難以保持在集(ji)塵電極上(shang)，致使(shi)其重返氣流(liu)。比(bi)電阻過高，到(dao)達(da)集(ji)塵電極的(de)塵粒電荷不易放出(chu)，在塵層之間形成電壓梯(ti)度會產生(sheng)局部(bu)擊穿和放電現(xian)象(xiang)。這(zhe)些(xie)情況都(dou)會造(zao)成除(chu)塵效率(lv)下降。

簡介

靜電除塵器的電源由控制箱、升壓變壓器和整流器組成。電源輸出的電壓高低對除塵效率也有很大影響。因此，靜電除塵器運行電壓需保持40一75kV乃至100kV以上。

工作原理

電(dian)(dian)除塵(chen)器的基本(ben)原理(li)是利用電(dian)(dian)力捕集煙氣中(zhong)的粉塵(chen)，主要包括以(yi)下四個(ge)相互有(you)關的物理(li)過程：（1）氣體的電(dian)(dian)離。（2）粉塵(chen)的荷(he)電(dian)(dian)。（3）荷(he)電(dian)(dian)粉塵(chen)向(xiang)電(dian)(dian)極(ji)移動。（4）荷(he)電(dian)(dian)粉塵(chen)的捕集。

荷(he)電(dian)(dian)(dian)(dian)(dian)粉(fen)(fen)塵(chen)(chen)的(de)(de)(de)(de)捕集過程(cheng)：在兩(liang)個(ge)曲率半徑相差較大的(de)(de)(de)(de)金屬陽極和陰極上，通過高壓(ya)直流電(dian)(dian)(dian)(dian)(dian)，維持(chi)一個(ge)足(zu)以使(shi)(shi)氣體電(dian)(dian)(dian)(dian)(dian)離(li)(li)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)場，氣體電(dian)(dian)(dian)(dian)(dian)離(li)(li)后所產(chan)生的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)子：陰離(li)(li)子和陽離(li)(li)子，吸附(fu)在通過電(dian)(dian)(dian)(dian)(dian)場的(de)(de)(de)(de)粉(fen)(fen)塵(chen)(chen)上，使(shi)(shi)粉(fen)(fen)塵(chen)(chen)獲得(de)電(dian)(dian)(dian)(dian)(dian)荷(he)。荷(he)電(dian)(dian)(dian)(dian)(dian)極性不同的(de)(de)(de)(de)粉(fen)(fen)塵(chen)(chen)在電(dian)(dian)(dian)(dian)(dian)場力的(de)(de)(de)(de)作用下，分(fen)別向不同極性的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)極運動，沉積在電(dian)(dian)(dian)(dian)(dian)極上，而達到(dao)粉(fen)(fen)塵(chen)(chen)和氣體分(fen)離(li)(li)的(de)(de)(de)(de)目(mu)的(de)(de)(de)(de)。

基本結構

靜電(dian)(dian)(dian)電(dian)(dian)(dian)除(chu)塵器由兩大部(bu)分組成(cheng)：一部(bu)分是電(dian)(dian)(dian)除(chu)塵器本體系(xi)統；另一部(bu)分是提供(gong)(gong)高壓(ya)直(zhi)流電(dian)(dian)(dian)的供(gong)(gong)電(dian)(dian)(dian)裝置和低壓(ya)自動控制系(xi)統。電(dian)(dian)(dian)除(chu)塵器的結構原理圖(tu)如圖(tu)1所示，高壓(ya)供(gong)(gong)電(dian)(dian)(dian)系(xi)統為(wei)升壓(ya)變壓(ya)器供(gong)(gong)電(dian)(dian)(dian)，除(chu)塵器集塵極接地。低壓(ya)電(dian)(dian)(dian)控制系(xi)統用(yong)來控制電(dian)(dian)(dian)磁振打錘(chui)、卸灰(hui)電(dian)(dian)(dian)極、輸灰(hui)電(dian)(dian)(dian)極以及幾(ji)個部(bu)件(jian)的溫度。